ST. PAUL (AP) — The Ramsey County medical examiner says a St. Paul woman whose body was found in the Mississippi River may have been smothered.

Dr. Michael McGee testified Wednesday in the murder trial of 39-year-old Jeffery Trevino. Trevino is accused of killing his wife, 30-year-old Kira Steger. She was last seen alive on Feb. 21, and her body was recovered in May.

McGee says Steger's body was in a state of "advanced decomposition." Under cross-examination by the defense, McGee testified that Steger's body could have been in the water for a couple of weeks to a couple of months.

Prosecutors are trying to pin Steger's time of death to sometime between midnight and 2 a.m. Feb. 22 based on food that was found in her stomach.

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